CN112373115A

CN112373115A - Carton packaging forming equipment

Info

Publication number: CN112373115A
Application number: CN202011266817.5A
Authority: CN
Inventors: 戴建国
Original assignee: Jiangsu Bosideng Technology Co ltd
Current assignee: Jiangsu Bosideng Technology Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-02-19
Anticipated expiration: 2040-11-13
Also published as: CN112373115B; JP7244137B2; WO2022099906A1; US11794437B2; JP2022549396A; US20230001664A1; DE112020004957T5

Abstract

The invention discloses a carton packaging forming device, which comprises a continuous feeding device, a carton folding mechanism and a cover sealing mechanism, wherein the continuous feeding device comprises a carton stacking frame, an adsorption mechanism and a rolling conveying mechanism, a carton is adsorbed from the back side of the carton stacking frame by the adsorption mechanism and then is conveyed to the carton folding device by the rolling conveying mechanism, the carton folding device comprises a downward pressing inner punch, a carton folding outer mold and a pushing mechanism, the carton folding outer mold comprises a front baffle plate, the carton sealing mechanism comprises a bearing platform and a pressing and laminating mechanism, the pressing and laminating mechanism comprises a pressing driving mechanism, a top pressing plate, a side pressing plate and a turnover cylinder, and the side pressing plate is hinged to the side edge of the top pressing plate through the driving of the turnover cylinder and used for enabling the side edge of the box cover to be tightly attached to the side wall of the bottom box. The invention can automatically complete the bottom box forming of the flat-plate paper sheet and the sealing and bonding of the box cover, thereby improving the production efficiency.

Description

Carton packaging forming equipment

Technical Field

The invention relates to a paper box packaging forming device, and belongs to the technical field of paper product manufacturing equipment.

Background

The paper box packaging forming equipment is used for bending and bonding paper boards to form a paper box, wherein the paper boards are cut and rolled with creases in advance, and the paper boards of a paper board stack are conveyed to a bending station by a feeding device to be folded. After the box is folded, the box needs to be covered after products are put in the box. At present, manual operation is usually used for folding and sealing the paper box with a turnover cover, so that the labor intensity is high, and the improvement of the production efficiency is not facilitated. In the chinese patent publication No. CN208068982U, the stamping mechanism needs to include a bottom forming outer mold assembly and an inner mold punch, the outer mold assembly includes a limit baffle and a forming limit structure, the folding forming of the bottom box needs to be bonded by matching with glue, and the structure is difficult to ensure that the side walls of the paper box are sequentially folded and bonded when being bent and formed, so the forming yield is low. The carton can only be formed completely by pre-folding the overlapped adhesive portion by other means, which increases the complexity of the apparatus, while the inner die punch is likely to collide with the pre-folded portion when pressed down.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a carton packaging and forming device, which realizes the automatic folding and sealing operation of the carton and improves the production efficiency.

The technical scheme of the invention is as follows: a carton pack forming apparatus comprising:

continuous feedway, stack frame, adsorption apparatus and roll extrusion conveying mechanism including the cardboard, the frame is stacked to the cardboard includes underframe, back of the body frame and side fence, the underframe becomes the right angle with the back of the body frame and is connected, the side fence is connected underframe and back of the body frame, the slope of back of the body frame sets up, the back of the body frame includes well hollow frame and is used for blockking off the pin that the cardboard deviates from the dorsal part, the pin sets up in the upper portion of well hollow frame, adsorption apparatus is located the dorsal part of back of the body frame, adsorption apparatus includes adsorption disc, adjustable shelf and push cylinder, the lower extreme of adjustable shelf is articulated with the lower extreme of back of the body frame, push cylinder is used for promoting the adjustable shelf, the adsorption disc is fixed in with the direction of back of the body frame the upper portion of adjustable shelf and is located the below of pin, roll extrusion conveying mechanism set up in the dorsal part top of back of the body frame, roll extrusion conveying mechanism includes lower conveyer, the upper rolling belt is positioned above the lower conveying belt, a conveying channel of a conveying paper board is formed between the upper rolling belt and the lower conveying belt, the lower conveying belt is longer than the upper rolling belt, and a guiding section for guiding the paper board to enter the conveying channel is formed at a position close to the back frame;

the box folding device comprises a rack, a downward pressing inner punch, a box folding outer mold and a pushing mechanism, wherein the downward pressing inner punch is positioned above the box folding outer mold and connected with the rack through a downward pressing cylinder, the box folding outer mold comprises a front baffle, a side baffle, a rear baffle, a corner baffle rod and a cover support rod, the front baffle, the side baffle and the rear baffle are arranged in a rectangular side edge mode, the top edges of the front baffle and the rear baffle are higher than the top edge of the side baffle, the corner baffle rod is arranged at the opposite vertex angle position of the corner formed by the rear baffle and the side baffle, the height of the corner baffle rod is higher than the height of the rear baffle, the cover support rod is arranged on two sides of the front baffle in parallel and higher than the top edge of the front baffle, and the front baffle, the side baffle and the rear baffle are respectively connected with the rack through a first horizontal cylinder, the pushing mechanism comprises a supporting table, pushing chains and pushing plates, the pushing plates are vertically connected to the pushing chains, the pushing chains are arranged on two sides of the supporting table and are lower than the table top of the supporting table, and the top edges of the pushing plates are higher than the table top of the supporting table;

the cover sealing mechanism comprises a bearing table and a pressing and laminating mechanism, the bearing table and the pressing and laminating mechanism are connected to the frame, an in-place baffle is arranged on the bearing table, the pressing and laminating mechanism is arranged above the bearing table and comprises a pressing driving mechanism, a top pressure plate, a side pressure plate and a turnover cylinder, the top pressure plate is connected with the frame through the pressing driving mechanism, the top pressure plate is rectangular, the side edges of the periphery of the top pressure plate are hinged with the side pressure plate, the top pressure plate is fixedly connected with the turnover cylinder, and the turnover cylinder drives the side pressure plate to turn downwards;

the rolling conveying mechanism is located on one side of the downward pressing inner punch and one side of the box folding outer die, a paperboard output by the rolling conveying mechanism enters a space between the downward pressing inner punch and the box folding outer die, and the paper box is pushed to the bearing table by the pushing mechanism.

In order to make the paper boards be more easily absorbed from the paper board stack and separated from the back frame constraint, the stop lever is further provided with a roller.

In order to enable the paperboard to enter the conveying channel more smoothly according to the shape of the lower conveying belt after being adsorbed, further, a guide rod is arranged at the lower part of the hollow frame, and a guide roller is arranged on the guide rod.

In order to keep the paper boards of the paper board stack to be always attached to the back frame, the bottom frame is further provided with a plurality of guide pillars, and the guide pillars are provided with sliding pressing plates. The paper board can be always close to the back frame by utilizing the sliding of the sliding pressing plate and the self gravity of the paper board.

Further, the angle stop rod is positioned in the range of 20 degrees left and right of an angle bisector of an included angle formed by the rear baffle and the side baffle.

Further, the angle blocking rod is provided with a horizontal contact part, and the projection of the horizontal contact part in the vertical direction is smaller than an included angle of 90 degrees with the rear baffle and the side baffle in the vertical direction.

Further, in order to ensure reliable adhesion, the inner punch comprises a bottom plate and a side wall, the side wall is connected with the bottom plate through a second horizontal cylinder, the side wall is located on the upper side of the bottom plate, and the bottom plate is connected with the lower cylinder.

Furthermore, in order to enable the relative positions of the paper sheets conveyed by the feeding mechanism, the downward-pressing inner punch and the box folding outer die to be more accurate, a guide plate is arranged above the box folding outer die and connected with the rack through a third horizontal cylinder.

Furthermore, in order to fully bond the box cover and the bottom box of the paper box, the side edge of the top pressure plate is provided with a downward-hanging rolling wheel, and the side pressure plate is provided with a notch for avoiding the rolling wheel.

Further, in order to adapt to the covers of the paper boxes with different heights, the bottom surface of the top pressure plate suspends a second pressure plate through a spring, and the projection of the second pressure plate in the vertical direction is located in the projection range of the top pressure plate in the vertical direction.

Compared with the prior art, the invention has the advantages that:

the driving part does not need to be additionally arranged to bend the ear part for bonding independently, and independent bending time control is not needed to be carried out on bending of different parts of the paper box, the bottom box of the paper box can be folded and bonded as required by pressing the inner punch head downwards once, the qualification rate of the paper box is improved, and the forming structure of the paper box can meet the requirement of covering and closing of a subsequent box cover.

After the bottom box of the paper box is folded and bonded, the paper box is bent at two sides of the box cover while moving forward, and then the end face of the box cover is bent and bonded by the end part bonding mechanism, so that manual operation is omitted, and the production efficiency is improved; the two sides of the cover plate of the paper box naturally form bending through the matching of the paper box pushing mechanism and the bending guide rod, the cylinder pushing type bending mechanism is not adopted, the control assembly is reduced, the structure of the device is simplified, and the control mode is simple. The paper box has few steps of cover sealing and high box forming efficiency.

Drawings

Figure 1 is a flat sheet structure prior to carton formation.

Fig. 2 is a schematic structural view of a carton package forming apparatus.

FIG. 3 is a schematic view of the structure of the continuous feeder.

FIG. 4 is a schematic view of the back side structure of the continuous feeder.

Fig. 5 is a schematic structural diagram of the rolling conveying mechanism.

Fig. 6 is a schematic structural diagram of the box folding mechanism.

Fig. 7 is a side view of the external mold of the folding box.

Fig. 8 is a schematic top view of the external mold of the folding box.

Fig. 9 is a schematic structural diagram of the capping mechanism.

FIG. 10 is a schematic view of a press fit mechanism.

Detailed Description

The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention thereto.

For better understanding of the present invention, as shown in fig. 1, the left side of the flat paper sheet 1 is used to form a bottom case, the foremost left end is a front side wall 101, the upper and lower ends of the front side wall 101 are ear portions 102 for adhesion, the front side wall 101 is connected to the front of a case bottom plate 103, and the front of the front side wall 101 is connected to a case cover 106. The upper and lower sides of the cassette bottom plate 103 are connected to left and right side walls 104, and the rear side of the cassette bottom plate 103 is connected to a rear side wall 105. At the upper and lower ends of the rear side wall 105 are also ears 102 for adhesion. The ear portions 102 of the front side wall 101 and the rear side wall 105 need to be folded to the inner sides of the left and right side walls 104 to be bonded to the left and right side walls 104. The present invention can complete the forming of the bottom case by pressing down in one step, and then the cover 106 and the bottom case are sealed by the cover sealing mechanism.

Please refer to fig. 2, which illustrates a carton packaging and forming apparatus, comprising a continuous feeding device 2, a box folding mechanism 3 and a cover sealing mechanism 4, wherein the continuous feeding device continuously provides a flat-plate-shaped paper sheet 1 for the folding mechanism, the box folding mechanism 3 completes the folding and bonding of the bottom box, and then the paper sheet falls to be filled and is conveyed to the cover sealing mechanism 4 for the closing and bonding of the box cover 106.

As shown in fig. 3, 4 and 5, the continuous feeding device 2 includes a cardboard stacking frame 201, an adsorption mechanism 202 and a rolling conveying mechanism 203, the cardboard stacking frame 201 is formed by connecting a bottom frame 2011, a back frame 2012 and side rails 2013, wherein the bottom frame 2011 is connected with the back frame 2012 at a right angle, and the side rails 2013 are provided with two ones, and are located at two sides of the bottom frame 2011 and the back frame 2012 and respectively connected with the bottom frame 2011 and the back frame 2012. A plurality of guide posts 2014 perpendicular to the connecting edges of the bottom frame 2011 and the back frame 2012 are arranged on the bottom frame 2011, and a sliding pressing plate 2015 is arranged on the guide posts 2014. A sliding platen 2015 is slidable along guide post 2014. The back frame 2012 is slightly inclined, so that the side of the bottom frame 2011 connected with the back frame 2012 is lower, and the side of the bottom frame 2011 far away from the back frame 2012 is higher. The cut and pre-creased sheet 1 is placed in the cardboard stacking frame 201 parallel to the back frame 2012. The sliding pressing plate 2015 presses the bottom of the flat-plate-shaped paper sheet 1 to the back frame 2012 due to the action of gravity, the overall height of the back frame 2012 is higher than that of the flat-plate-shaped paper sheet 1, the periphery of the back frame 2012 is a hollow frame, a transverse blocking rod 2016 is arranged at the middle upper part of the hollow frame, and the distance between the blocking rod 2016 and the bottom of the back frame 2012 is slightly smaller than the height of the flat-plate-shaped paper sheet 1, so that the flat-plate-shaped paper sheet 1 can be limited in the paper sheet stacking frame 201 by the blocking rod 2016 and the bottom of the back frame.

In order to easily suck the flat-plate-shaped paper sheets 1 out of the cardboard stacking frame 201, the stopper 2016 is provided with a roller 2017, and the flat-plate-shaped paper sheets 1 can be taken out from the back side of the back frame 2012 by slightly bending with the aid of the rolling of the roller 2017. Meanwhile, in order to enable the flat-plate-shaped paper sheets 1 to be easily bent in the sucking process and to be more easily conveyed into the rolling conveying mechanism 203, a transverse guide rod 2018 is arranged at the middle lower part of the hollow frame, and a guide roller 2019 is arranged on the guide rod 2018. When the adsorption mechanism 2 adsorbs the flat-plate-shaped paper piece 1 from the back side and pulls it backward, the top end of the flat-plate-shaped paper piece 1 can be pulled out from the position of the roller 2017 of the stopper 2016, and the flat-plate-shaped paper piece 1 forms a bending point at the position of the guide roller 2019.

The adsorption mechanism 202 is located on the back side of the back frame 2012, the adsorption mechanism 202 includes an adsorption disk 2021, a movable frame 2022 and a pushing cylinder 2023, the lower end of the movable frame 2022 is hinged to the lower end of the back frame 2012, the pushing cylinder 2023 is used for pushing the movable frame 2022, the adsorption disk 2021 is fixed on the upper portion of the movable frame 2022 in a direction toward the back frame 2012, and the height of the adsorption disk 2021 should be lower than the stop lever 2016 so that it can be adsorbed on the surface of the plate-shaped paper sheet 1. After the pushing cylinder 2023 pushes the movable frame 2022 to approach the back frame 2012, the adsorption disc 2021 is adsorbed on the surface of the flat-plate-shaped paper sheet 1, and then the pushing cylinder 2023 retracts, and the adsorption disc 2021 pulls out the top of the flat-plate-shaped paper sheet 1.

The roll conveying mechanism 203 is disposed above the back side of the back frame 2012, the roll conveying mechanism 203 includes a lower conveying belt 31 and an upper roll belt 2032, and the lower conveying belt 2031 is driven by a motor. The upper rolling belt 2032 is located above the lower conveyer belt 2031, and the upper rolling belt 2032 is formed by a plurality of rollers 2032a arranged at intervals along the conveying direction of the lower conveyer belt 2031. A conveying path for conveying the flat-plate-shaped paper sheets 1 is formed between the upper rolling belt 2032 and the lower conveying belt 2031, and the lower conveying belt 2031 is longer than the upper rolling belt 2042 and forms a guide section 2031a for guiding the flat-plate-shaped paper sheets 1 into the conveying path at a position close to the back frame 2012. The guide section 2031a is at a lower position such that the suction tray 2021 is located at both sides of the guide section 2031a, and the height of the suction tray 2021 is higher than the front end of the guide section 2031 a. In this way, the flat-plate-shaped paper sheets 1 pulled out by the adsorption tray 2021 can directly lean on the lower conveying belt 2031, so that the flat-plate-shaped paper sheets 1 can be pulled by the lower conveying belt 2031 through friction force, the lower ends of the flat-plate-shaped paper sheets 1 are separated from the back frame 2012, and the top ends of the flat-plate-shaped paper sheets 1 are conveyed into the conveying channel. The conveying path of the flat sheet 1 formed by the entire rolling and conveying mechanism 203 is slightly inclined from the vertical direction to the horizontal direction, so that the flat sheet 1 is finally conveyed to the box folding mechanism 3 in a horizontal manner for subsequent forming steps.

As shown in fig. 6, the box folding mechanism of the carton packaging and forming apparatus includes a downward pressing inner punch 301, a box folding outer mold 302, a pushing mechanism 303 and a frame 5, the downward pressing inner punch 301 is located above the box folding outer mold 302, the downward pressing inner punch 301 is used for pressing the flat-plate-shaped paper sheet 1 downward into the box folding outer mold 302, the downward pressing inner punch 301 includes a bottom plate 3011 and side walls 3012, wherein the side walls 3012 are located on the bottom plate 3011 and on the left and right sides of the bottom plate 3011, the side walls 3012 are connected to the bottom plate 3011 through a second horizontal cylinder 3013, front and back parts of the bottom plate 3011 are respectively provided with a stopper 3014, the bottom plate 3011 is connected to the frame 5 (not shown in the drawing of a part of the frame 5) through a downward pressing cylinder 3015, and the frame 5 is also used for fixing the. The pressing cylinder 3015 drives the pressing inner punch 301 to move up and down to cooperate with the box folding outer die 302 to carry out box folding operation. The rolling conveying mechanism 203 is positioned at one side of the inner punch 301 and the outer folding box die 302, and the flat paper sheets 1 output by the rolling conveying mechanism 203 enter between the inner punch 301 and the outer folding box die 302.

Referring to fig. 7 and 8, the external mold 302 for a folding box includes a front panel 3021, side panels 3022, a rear panel 3023, corner panels 3024, and a cover support bar 3025, wherein the side panels 3022 are two, and the front panel 3021, the side panels 3022, and the rear panel 3023 are arranged in a rectangular side manner. In the process of pressing down the flat-plate-like sheet piece 1, the cassette base plate 103 is pressed into a rectangle surrounded by the front flap 3021, the side flaps 3022 and the rear flap 3023. Front and

rear panels

3021 and 3023 may be formed to be equal in height, but the height of the top edges of front and

rear panels

3021 and 3023 is greater than the height of the top edges of side panels 3022, so that during the pressing process, front and

rear side walls

101 and 105 of flat sheet 1 bend before left and right side walls 104 contact with outer folder mold 302. The front fender 3021, the side fender 3022, and the rear fender 3023 are connected to the frame 5 by first horizontal cylinders 3026, respectively, and when the first horizontal cylinders 3026 are actuated, the rectangle surrounded by the front fender 3021, the side fender 3022, and the rear fender 3023 is increased or decreased accordingly. When a flat sheet 1 is pressed into a rectangular space defined by the front, side and

rear flaps

3021, 3022, 3023, the first horizontal cylinder 3026 is operated to reduce the rectangular space, and the second horizontal cylinder 3013, which is operated to press down the inner punch 301, is operated to expand the side wall 3012, thereby providing more reliable adhesion between the two sides of the carton.

The corner bar 3024 is provided at a diagonal corner of the corner formed by the back visor 3023 and the side visor 3022. The angle bar 3024 is located within 20 ° to the left and right of the bisector of the diagonal angle of the angle formed by the back visor 3023 and the side visor 3022. The function of the corner posts 3024 is to force the ears 102 of the rear side walls 105 to fold first, so that the entire position of the corner posts 3024 is outside the rectangle 4 enclosed by the front, side and

rear guards

3021, 3022, 3023 and the height of the corner posts 3024 is higher than the height of the top edge of the rear guard 3023. Two cover support rods 3025 are provided, which extend in the front-rear direction on both sides of the front shield 3021 and are higher than the top edge of the front shield 3021. The cover support rod 3025 functions to support the cover 106 of the flat sheet 1 to prevent the flat sheet 1 from falling down when the feeding mechanism feeds the flat sheet 1 below the inner punch 301, and to allow the ear portions 102 of the front side wall 101 to be folded first.

In this embodiment, the angle blocking rod 3024 is of an inverted "J" shape, the top of the angle blocking rod 3024, i.e., the bottom of the "J" shaped hook, is a horizontal contact portion 3024a, which is horizontally disposed, and the head end of the horizontal contact portion 3024a is bent downward to form an arc shape with a small radius, so that the contact portion between the angle blocking rod 3024 and the paper piece is smooth, and the paper piece can be prevented from being damaged. The angle α between the vertical projection of the horizontal contact part 3024a and the vertical projection of the back flap 3023 and the side flaps 3022 is less than 90 °, which ensures that the horizontal contact part 3024a has a sufficiently long contact surface with the ear 102 of the flat sheet 1 to ensure that the ear 102 is bent. In order to make the carton more smoothly enter when folded, the top edges of the front flap 3021, the rear flap 3023, and the side flaps 3022 are folded back to the outside of the rectangle to form a flared shape. In order to make the relative positions of the paper sheets conveyed by the feeding mechanism, the pressing inner punch 301 and the folding box outer die 302 more accurate, guide plates 3027 are further arranged above the folding box outer die 302 and positioned at two sides of the pressing inner punch 301, and the guide plates 3027 are connected with the frame 5 through a third horizontal air cylinder 3028. When the flat sheet 1 is fed by the feed mechanism, the guide plates 3027 are driven by the third horizontal cylinder 3028 to move toward the center by a small distance so that the distance between the two guide plates 3027 corresponds to the width of the flat sheet 1, and when the inner punch 301 is pushed down, the guide plates 3027 are driven by the third horizontal cylinder 3028 to move to the both sides and return to the original positions.

A pushing mechanism 303 is arranged below the box folding outer die 302, and the paper boxes which are bonded are pushed to the next station by the pushing mechanism 303. The pushing mechanism 303 includes a support base 3031, a pushing chain (not directly shown in the figure) and a pushing plate 3032, wherein the pushing chain is driven by a chain wheel 3033 and is disposed on two sides of the support base 3031 and lower than the table top of the support base 3031. The push plate 3032 is vertically connected to the push chain, and the top edge of the push plate 3032 is higher than the table top of the support table 3031. In order to avoid deviation from the support base 3031 when the paper box falls, lateral guide plates 305 are arranged between the outer box folding die 302 and the pushing mechanism 303 at two sides of the support base 3031. After the paper box is folded and bonded, a first horizontal air cylinder action 3026 of the outer box folding mold 302 expands the rectangular space, the paper box can fall from the outer box folding mold 302 to the table top of the support table 3031, then the pushing chain drives the pushing plate 3032 to advance, and the paper box is pushed by the pushing plate 3032 to advance to the next station along the table top of the support table 3031.

Referring to fig. 9 and 10, the cover closing mechanism 4 of the carton package forming apparatus includes a supporting base 401 and a pressing and attaching mechanism 402, and the supporting base 401 and the pressing and attaching mechanism 402 are connected to the frame 5. The surface of the carrier 401 is provided with a row of rollers 4011 to drive the paper cassette 6 to move on the surface of the carrier 401 so that the paper cassette 6 comes under the lower press-fit mechanism 402. Be equipped with on the plummer 401 and target in place baffle 4012, plummer 401 below is equipped with lift cylinder 4013, and lift cylinder 4013 is used for the drive baffle 4012 that targets in place to go up and down. When the paper box 6 moves on the bearing table 401, the lifting cylinder 4013 drives the position-locating baffle 4012 to rise, the paper box 6 can be blocked and cannot move forward continuously, the position-locating baffle 4012 is arranged at a position below the pressing and attaching mechanism 402, and the paper box 6 can be arranged below the pressing and attaching mechanism 402 at the moment so as to carry out capping action.

The pressing-down attaching mechanism 402 is arranged above the bearing table 401, the pressing-down attaching mechanism 402 comprises a pressing-down driving mechanism 4021, a top pressing plate 4022, a side pressing plate 4023 and an overturning cylinder 4024, the top pressing plate 4022 is connected with the frame 5 through the pressing-down driving mechanism 4021, and the pressing-down driving mechanism 4021 can be a linear servo mechanism or a cylinder. The top pressing plate 4022 is arranged in a rectangular shape, a second pressing plate 4026 is suspended on the bottom surface of the top pressing plate 4022 through a spring 4025, and the projection of the second pressing plate 4026 in the vertical direction is located within the projection range of the top pressing plate 4022 in the vertical direction. The side edges around the top pressure plate 4022 are hinged with a side pressure plate 4023, the top pressure plate 4022 is fixedly connected with a turnover cylinder 4024, and the turnover cylinder 4024 drives the side pressure plate 4023 to turn down. The side edge of the top pressure plate 4022 is provided with a lower hanging bracket 4027, a rolling wheel 4028 is arranged on the lower hanging bracket 4027, and the side pressure plate 4023 is provided with a notch 4023a for avoiding the rolling wheel 4028.

When the paper box 6 is located below the pressing and attaching mechanism 402, the pressing and driving mechanism 4021 drives the top pressing plate 4022 to descend, the second pressing plate 4026 is in contact with the box cover and compresses the spring 4025, the descending distance of the top pressing plate 4022 is fixed when the heights of the paper box 6 are different, and the degree of the second pressing plate 4026 compressing the spring 4025 is different, so that the box cover can be attached to the bottom box of the paper box 6. In the process of descending the top pressing plate 4022, the rolling wheel 4028 firstly bonds the edge part of the box cover with the side wall part of the bottom box of the paper box 6, after the top pressing plate 4022 is in place, the turning cylinder 4024 drives the side pressing plate 4023 to turn downwards, the side pressing plate 4023 is turned into a vertical state from an initial horizontal or slightly inclined state, and the edge part of the box cover is bonded with the side wall of the bottom box of the paper box 6.

It should be noted that before the box folding mechanism 3 and the cover sealing mechanism 4 operate, gluing should be performed on the part of the bottom box of the paper box that needs to be pasted and the part of the box cover 106 that needs to be pasted respectively, and accordingly, gluing nozzles can be arranged in front of the box folding mechanism 3 and the cover sealing mechanism 4 for gluing, and the specific positions can be set according to the specific spraying positions.

Claims

1. A carton pack forming apparatus comprising:

2. A carton pack forming apparatus as claimed in claim 1, wherein said bars are provided with rollers.

3. A carton pack forming apparatus as claimed in claim 2, wherein a lower portion of said hollow frame is provided with a guide bar on which guide rollers are provided.

4. A carton pack forming apparatus as claimed in claim 1, wherein said base frame is provided with guide posts on which a sliding platen is provided.

5. A carton pack forming apparatus as claimed in claim 1, wherein said corner bar is located within 20 ° to the left and right of a bisector of an angle formed by the back and side flaps.

6. A carton pack forming apparatus as claimed in claim 1, wherein said angle bar is provided with a horizontal contact portion which, in vertical projection, makes an angle of less than 90 ° with the rear flap and the side flaps in vertical projection.

7. A carton pack forming apparatus as claimed in claim 1, wherein a guide panel is provided above the outer mould of the folded box, the guide panel being connected to the frame by a third horizontal cylinder.

8. A carton pack forming apparatus as claimed in claim 1, wherein said top press plate is provided at its side edge with a downwardly depending roller wheel, and said side press plate is provided with a recess for avoiding said roller wheel.

9. A carton package forming apparatus as in claim 1, wherein a bottom surface of said top press plate suspends a second press plate by a spring, a projection of said second press plate in a vertical direction being within a projection of said top press plate in a vertical direction.